Antenor assorati



Patented Aug. 2, 1398. A. ASSORATI.

W B E N C H (Application filed Jan. 7, 1897.)

(No Model.)-

same.

5o inafter more fully set forth.

a vertical central section from front to rear UNITED STATES PATE T OFF- E.

ANTENOR ASSORATI, or NEW YORK, N. Y.

WRENCH.

SPECIFICATION forming part 'of Letters Patent No. 608,358, dated August 2, 1898.

Application filed January 7 1 89 T0 aZZ whom it may concern:

Be it known that I, ANTENOR ASSORATI, of New York, in the county and State of N ew' York, have invented'a new and useful Improvement in Wrenches, of which the following is a specification.

My invention relates to an improvement in wrenches, with the object in view of providin g a wrench in which a movable jaw is fitted to slide along the shank of the stationary jaw, and means for quickly and securely fastening the movable jaw in any desired adj ustment toward and away from the fixed jaw.

A further object is to provide a wrench of the above character which will consist of a very few parts and which may be adapted for use either as a pipe or as a nut wrench.

A practical embodiment of my invention is represented in the accompanying'drawings, in which a Figure 1 represents a side view of the wrench, showing in full lines the position of the parts when the shank of the movable jaw is clamped to the shank of the fixed jaw and in dotted lines the position of the movable jaw when released for sliding it toward and away from the fixed jaw. Fig. 2 is a transverse section on the line 2 2 of Fig. 1. Fig. 3 is a back view of the wrench with the parts in the p0- sition shown in full lines in Fig. 1. Fig. 4 is through the wrench on the line 4c- 4 of Fig. 3. Fig. 5 is a side view of thefixed or stationary jaw, its shank, and handle. Fig. 6 is a side view of the movable jaw, its shank, and operating-handle. Fig. 7 is-a front view of the Fig. 8 is a side view of a wrench of modified form, the parts being shown in their locked position; and Fig. 9'is a transverse section on the line 9 9 of Fig. 8.

The fixed or stationary jaw is denoted by A, and it is provided with a suitable body portion or shank h, which is extended into an operating-handle a. The shank a is preferably rounded along its front and back, and said front and back are milled or roughened, as shown at a m for preventing the sliding movable jaw from slipping when engaged in clamping position therewith, as will be here- The movable jaw is denoted by B, which jaw embraces the shank a of the fixed jaw A Serial No. 6 18,2 8 5. (No model.)

and may be slid along the same except when clamped thereto. The movable jawB is provided with a suitable shank b, which is extended to form a suitable operating-handle b. The front 12 of the shank b is preferably concave in cross-section, so as to fit snugly around the curved back a of the shank a of the fixed jaw, the said front 12 being preferably milled or roughened, as shown. The opening 11 in the movable jaw 13, through which the shank of the fixed jaw slides, is gradually increased in diameter from front to rear and from top to bottom to allow the shank b of the movable jaw to swing or rock away from the shank a to release the milled or roughened portion b from engagement with the roughened portion a upon the shank of the fixed jaw.

The back I) of the movable jaw 13 above the opening 19 is preferably milled or roughened, which milled or roughened portion engages the roughened portion (1 upon the front of the shank a when the movable jaw is clamped to the shank of the stationary jaw and will be released therefrom as the operating-handle b is rocked away from the handle a, thereby allowing the movable jaw to be easily slid up and down along the shank a of the fixed or stationary jaw.

The means which Lhave shown for clamping the fixed and movable jaws at any desired distance apart is as follows: The handles a. and b are so formed as to gradually diverge from each other as they extend downwardly. A clamping-ring C is placed in position surrounding the shanks of the fixed and movable jaws, the said ring 0 being of sufficient diameter from front to rear to en- 'able the shank and handle of the movable jaw to be rocked away fromv the shank and handle of the fixed jaw for adjusting the movable jaw up and down relative to the fixed jaw. This clamping-ring Q may be placed in position by first withdrawing the fixed jaw and its shank, then sliding the of the fixed jaw until it is adjusted to the proper point. The clamping-ring is then forced downwardly along the handles of the two jaws to the limit of its movement in that direction. This downward movement of the ring 0 will serve to force the handles toward each other, thereby causing the several roughened surfaces upon both of the shanks to be engaged with each other to firmly hold the parts against movement. \Vhen it is desired to increase or diminish the distance between the movable jaw and the fixed jaw, the clampingring O is slid upwardly into a position to embrace the shanks of. the two jaws, when the said movable jaw may be rocked, as hereinbefore described, to release it from clamping engagement with the shank of the fixed jaw.

In the form of wrench shown in Figs. Sand 9 the shank of the fixed jaw is shown as rectangularin cross-section rather than oval, and the faces of the movable jaw and its shank which engage the shank of the fixed jaw are also shown fiat rather than concave.

The wrench as above described is intended for use as a nut-wrench. \Vhen it is desired to use the wrench as a pipe-wrench, the fixed and movable jaws are provided with suitable sliding grippingplates .l) and E, having their adjacent faces roughened or provided with teeth, as shown. The gripping-plate l1) frictionally engages the fixed jaw A. In the present instance I have shown the grippingplate as removably secured to the fixed jaw in the following manner:

The fixed jaw is provided with side grooves or, into which enter the upwardly-exteuded sides (Z of the grippingplate l). The grooves u in the fixed jaw are open through the front of the jaw, so that the gl'i piug-plate l) may be attached by sliding it inwardly toward the shank of the fixed jaw.

The sides of the gripping-plate I) may be of spring form, as shown, to insure their snug frictional engagement with the fixed jaw.

The movable gripping-plate E upon the movable jaw 17 is preferably attached thereto in the following manner:

The jaw l is provided with grooves I) upon its opposite sides, which grooves extend .from the back I)" of the jaw forwardly almost but not quite to the front of the said jaw. The plate E is provided with downwardly-ex tended sides a, which are adapted to enter the grooves if as the gripping-plate E is insorted into position. It will be noted that the movable jaw 11 must be removed from engagement with the fixed jaw before the gripping-plate can be inserted in position, and when the said movable jaw is in engagement with the shank of the fixed jaw the plate E is locked against removal from the said movable jaw.

It is not essential that the gripping-plate D should be locked to the fixed jaw A, for the reason that when the pipe or other curved object is grasped between the two grippingplates and the wrench is operated to twist the said pipe the tendency will be to force the grippingplate D inwardly toward the shank of the fixed jaw and the gripping-plate E outwardly to the forward end of the movable jaw.

It will be seen that the wrench. as above described consists of a very small number of parts and that the same may be made of dropped forgings, thereby insuring great strength of parts, the opening I) in the movable jaw being bored out. It will be further seen that the movable jaw has its operating handle and shank fixed relatively thereto, preferably integral, therewith, the said jaw having both a sliding movement along the shank of the fixed jaw and also a rocking movement to clamp it to and release it from the said shank of the fixed jaw.

The wrench as above described may be easily adjusted to different articles and clamped in position by the use of one hand only, and when once a desired. distance between the jaws is obtained the wrench may be clamped in such position until positively released.

\Vhat I claim isl. A wrench comprising a fixed jaw provided with a shank and handle, a movable jaw provided with a shank and handle and having a socket for the reception of the shank of the fixed jaw, the shank of the fixed jaw being roughened along its back, and the movable jaw being provided with an extended bearing for engaging the roughened back of the shank of the fixed jaw, the said movable jaw being arranged to be thrown toward the fixed jaw when the handles are pressed toward one another, substantially as set forth.

2. A wrenchcomprising a fixed jaw with a shank and handle, a movable jaw with a shank and handle and having a socket for the reception of the shank of the fixed jaw, a clamping-plate having a sliding engagement with the movable jaw and held therein by the engagement of one end with the shank of the fixed jaw and a gripping-plate having a sliding engagement with the fixed jaw and provided with a spring-clamp for removably engaging it with the opposite sides of the fixed jaw, substantially as set forth.

AN"ENOli. ASSORATI.

\Vitnesses:

FREDK. I lAYNES, EIHVARD Vinsun. 

